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Three digit numbers are made using the digits 4, 5, 9 (without repetition). If a number among them is selected at random, what is the probability that the number will : (i) be a multiple of 5 ? (ii) be a multiple of 9 ? (iii) will end with 9 ? |
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Answer» Total number of three digit numbers are : 459, 495, 549, 594, 945, 954 = 6 (i) P(multiple of 5) = 2/6 = 1/3 (ii) P(multiple of 9) = 6/6 = 1/1 (iii) P(ending with 9) = 2/6 = 1/3 |
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